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DOI | 10.1088/1748-9326/11/3/035006 |
The water footprint of staple crop trade under climate and policy scenarios | |
Konar, Megan1; Reimer, Jeffrey J.2; Hussein, Zekarias3; Hanasaki, Naota4 | |
发表日期 | 2016-03-01 |
ISSN | 1748-9326 |
卷号 | 11期号:3 |
英文摘要 | Trade in staple crop commodities has become increasingly important in the global food system, with ramifications for both food security and water resources sustainability. It is thus essential to understand how the water footprint (WF) of staple crop trade may change in the future. To this end, we project international staple crop trade and its WF under climate and policy scenarios for the year 2030. We use the H08 global hydrologic model to determine the impact of climatic changes to staple crop yields and evapotranspiration. Using the yield changes projected with the H08 model, we estimate the bilateral trade of staple crops using the Global Trade Analysis Project model. We combine these projections to obtain the total and blue WF of agricultural trade and global water savings (GWS) across scenarios. This approach enables us to determine the direct impact of climate change and trade liberalization-together and in isolation-on the WF of staple crop trade. Importantly, we show that trade liberalization leads to greater WF, making it a potentially important adaptation measure to a changing climate, although future work is needed to distinguish high resolution crop water use, water stress, and commodity transfers. |
英文关键词 | water footprint;agricultural trade;virtual water;global water savings;climate change;trade policy;adaptation |
语种 | 英语 |
WOS记录号 | WOS:000373401400034 |
来源期刊 | ENVIRONMENTAL RESEARCH LETTERS |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/60720 |
作者单位 | 1.Univ Illinois, Civil & Environm Engn Dept, Urbana, IL 61801 USA; 2.Oregon State Univ, Dept Appl Econ, Corvallis, OR 97331 USA; 3.US EPA, Washington, DC 20460 USA; 4.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan |
推荐引用方式 GB/T 7714 | Konar, Megan,Reimer, Jeffrey J.,Hussein, Zekarias,et al. The water footprint of staple crop trade under climate and policy scenarios[J]. 美国环保署,2016,11(3). |
APA | Konar, Megan,Reimer, Jeffrey J.,Hussein, Zekarias,&Hanasaki, Naota.(2016).The water footprint of staple crop trade under climate and policy scenarios.ENVIRONMENTAL RESEARCH LETTERS,11(3). |
MLA | Konar, Megan,et al."The water footprint of staple crop trade under climate and policy scenarios".ENVIRONMENTAL RESEARCH LETTERS 11.3(2016). |
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